code: def testArrayToIntCsvRounding(self):
      csv_string = convert_image_to_csv.array_to_int_csv(
          np.array([[1.0, 2.0], [3.0, 4.0]])
      )
      self.assertEqual("1,2,3,4", csv_string)
  
file_path: tensorflow/tensorflow/lite/tools/convert_image_to_csv_test.py
imports: import os
  import numpy
  from tensorflow.lite.tools import convert_image_to_csv
  from tensorflow.python.framework import test_util
  from tensorflow.python.framework.errors_impl import NotFoundError
  from tensorflow.python.platform import resource_loader
  from tensorflow.python.platform import test
label_desc: Use image node_id 9 for calling the ConvertImageToCsvTest obj's underlying member method code with example usage: obj.testArrayToIntCsvRounding() without return types